Bearing for fast-running wheels.



F. A. STEWART.

BEARING FOR FAST RUNNING WHEELS.

APPLICATION men SEPT- 4. 1914.

1,161,905. I Patented Nov. 30, 1915.

WM Mam W zw wm COLUMBIA PLANOGRAPH co wAsl-nNs'roN. D. c.

nrirrn sans nnr FRANCIS A. STE ART, or HA IL ON,"on'rsrti canans, assreivon or ONE-HALF T WILLOUGHBY ELLIs, or naivrrnromonranro, CANADA.

B ARING FOR rasnnuunnve WHEELS- memes.

' To all whom it may concern:

Be it known that I, FRANCIS ALEXANDER STEWART, of the city of Hamilton, 'in the county of Wentworth, Province of Ontarlo,

Dominion of Canada, have invented certain new and useful Improvements in Bearings for Fast-Running 'lVheels, of whichthe following is a specification.

My invention relates to bearings for fast running wheels and more particularly to trolley wheels for electric railroads and the object of the present invention is to devise a bearing in which centrifugal force tends to id the passage of the lubricant to the bearing surfaces.

A further object is to provide for lateral yielding of the wheel as it passes around curves in the trolley wire and yet insure the wheel redeeming its initial positlon 1n lts bearing after the curve has been passed.

My invention consists a wheel, a cen- 7 tral axle extending therethrough and having an axial o1l passage communlcating with an oil reservoir, radial oil-passages through the wall of the axle, a slidable and rotatable sleeve on the axle and spring plates bear ng on the sides of the wheel, "alias hereinafter more particularly described and illustrated by the accompanying drawings, in which m formation, the outer limbs being formed with turned over 7 ends which engage the outer ends of the fork 8 and the axle passes through central holes therein.

6 is a lubricant reservoir constructed in cross section as shown in Fig. 3, the longitudinal edges 7, 7 engage the sides of the fork 3 and prevent lateral displacement.

8 is a stop which fits into one of the inserts for the usual split pins.

9 is a bushing formed integralwith the reservoir 6.

10 is a hollow spindle or axle which is tightly threaded into the bushing 9.

Specificationof Letters Patent.

. distance between 1 the P stas Nov. so, 1915.

Application filcd'Septe'mber 4., 1914. Serial No. 860,217.

11 is a central reducedp'art on the axle 10.

12 are radial oil passages through the axle walls. p p

and rotatable bushing, the

13 is'a 'slidable length of which is somewhat less than the :inside faces of the harp: a v

14 is a central hole through the bushing 13. I I p 15, 15 are holesnearthe outer ends of the bushing 13 and diametrically opposite the hole 14:;

16 is a split pin for securely retaining the axle 10 in position.

'17 is a feed wick from the reservoir 6 to the interior of the axle 10.

' 18 is a cap for the reservoir 6.

Hitherto wheels of. h1s type V constructed with the lubricant carried in the wheel. In this. construction the action of have been centrifugal force tends to draw the lubricant away from the bearing surfaces. In my invention, however, this is overcome and since the lubricant is carried in the interior of the axle centrifugal'force tends to carrythe same i to the bearing surface.

. A great disadvantage in former wheels has been the excessive escape and throwing of lubricant upon surrounding objects. This is overcome by my invention as the rotation and constantaxial displacement of therbushing 13 on the fixed axle 10 causes the lubricant to be mosteffectively distributed. Further the reduced part .11 acts as a reservoir and assists in the lubrication.

It has been customary in wheels of this type to rivet the contact spring plates t to the harp. By this construction removal of the same was costly and occupied considerable time. In my invention these plates are simply inserted into place and are 1n no way rigidly fastened to the harp. The axle passes through holes in the plates while the outer limbs of the plates engage the outer ends of the harp. By this construction replacement of the plates is very simply and cheaply accomplished.

A further advantage of my invention is the degree of lateral movement allowed to the wheel. This is very essential when the wheel is passing around curves in the trolley wire and is a decided improvement over former wheels.

In my device while thewheel is free to move laterally the action of the spring contact plates. constantly tends to return it to its central position.

-Ma-ny modifications may be made in my invention without departing from the spirit of the same or the scope of claims and the form shown is to be ,takenasillustrative an lateral freedom on the axle, the axle and bushing having oil passages therethrough, a

rotating element bearing on the bushing and having lateral freedom thereomspring plates detachablv mounted between the axle supporting arms and the rotating-element, the

said spring plates havingfou'twardly extending limbs engaging the ends of the axle supporting arms, and means for supplying lubricant -t-o'*the interior of the axle.

2. A spring plate adapted to be inserted betweenar'otatingelement and its axle supporting forks, consisting of an outer limb having its end portion turned over so as to engage the :end of the fork, an inner limb extending substantially parallel to the outer limb, the inner and-outer limbs having holes .through which the axle is adapted :to pass.

in witness whereof I have hereunto set my hand in the presence of two witnesses.

' a FRANCIS A. STEXVART.

.Witnesses: I a

"GERTIE NIoHoLsoN,

ALFRED T. BRLATTON.

Copies of this patent may benbtained -f0'r five cents each, by adilressing the Commissioner of Patents Walshington,-D,G. 

